Telephone base unit



FIG. 1 is a front perspective view of a telephone base unit of the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a first side view thereof;

FIG. 5 is a second side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a front perspective view thereof shown in an environmental use.

In the drawings, the broken lines indicate portions of the telephone base unit that form no part of the claimed design. 

We claim the ornamental design for a telephone base unit, as shown and described. 